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/**
* @output wp-admin/js/editor-expand.js
*/
( function( window, $, undefined ) {
'use strict';
var $window = $( window ),
$document = $( document ),
$adminBar = $( '#wpadminbar' ),
$footer = $( '#wpfooter' );
/**
* Handles the resizing of the editor.
*
* @since 4.0.0
*
* @return {void}
*/
$( function() {
var $wrap = $( '#postdivrich' ),
$contentWrap = $( '#wp-content-wrap' ),
$tools = $( '#wp-content-editor-tools' ),
$visualTop = $(),
$visualEditor = $(),
$textTop = $( '#ed_toolbar' ),
$textEditor = $( '#content' ),
textEditor = $textEditor[0],
oldTextLength = 0,
$bottom = $( '#post-status-info' ),
$menuBar = $(),
$statusBar = $(),
$sideSortables = $( '#side-sortables' ),
$postboxContainer = $( '#postbox-container-1' ),
$postBody = $('#post-body'),
fullscreen = window.wp.editor && window.wp.editor.fullscreen,
mceEditor,
mceBind = function(){},
mceUnbind = function(){},
fixedTop = false,
fixedBottom = false,
fixedSideTop = false,
fixedSideBottom = false,
scrollTimer,
lastScrollPosition = 0,
pageYOffsetAtTop = 130,
pinnedToolsTop = 56,
sidebarBottom = 20,
autoresizeMinHeight = 300,
initialMode = $contentWrap.hasClass( 'tmce-active' ) ? 'tinymce' : 'html',
advanced = !! parseInt( window.getUserSetting( 'hidetb' ), 10 ),
// These are corrected when adjust() runs, except on scrolling if already set.
heights = {
windowHeight: 0,
windowWidth: 0,
adminBarHeight: 0,
toolsHeight: 0,
menuBarHeight: 0,
visualTopHeight: 0,
textTopHeight: 0,
bottomHeight: 0,
statusBarHeight: 0,
sideSortablesHeight: 0
};
/**
* Resizes textarea based on scroll height and width.
*
* Doesn't shrink the editor size below the 300px auto resize minimum height.
*
* @since 4.6.1
*
* @return {void}
*/
var shrinkTextarea = window._.throttle( function() {
var x = window.scrollX || document.documentElement.scrollLeft;
var y = window.scrollY || document.documentElement.scrollTop;
var height = parseInt( textEditor.style.height, 10 );
textEditor.style.height = autoresizeMinHeight + 'px';
if ( textEditor.scrollHeight > autoresizeMinHeight ) {
textEditor.style.height = textEditor.scrollHeight + 'px';
}
if ( typeof x !== 'undefined' ) {
window.scrollTo( x, y );
}
if ( textEditor.scrollHeight < height ) {
adjust();
}
}, 300 );
/**
* Resizes the text editor depending on the old text length.
*
* If there is an mceEditor and it is hidden, it resizes the editor depending
* on the old text length. If the current length of the text is smaller than
* the old text length, it shrinks the text area. Otherwise it resizes the editor to
* the scroll height.
*
* @since 4.6.1
*
* @return {void}
*/
function textEditorResize() {
var length = textEditor.value.length;
if ( mceEditor && ! mceEditor.isHidden() ) {
return;
}
if ( ! mceEditor && initialMode === 'tinymce' ) {
return;
}
if ( length < oldTextLength ) {
shrinkTextarea();
} else if ( parseInt( textEditor.style.height, 10 ) < textEditor.scrollHeight ) {
textEditor.style.height = Math.ceil( textEditor.scrollHeight ) + 'px';
adjust();
}
oldTextLength = length;
}
/**
* Gets the height and widths of elements.
*
* Gets the heights of the window, the adminbar, the tools, the menu,
* the visualTop, the textTop, the bottom, the statusbar and sideSortables
* and stores these in the heights object. Defaults to 0.
* Gets the width of the window and stores this in the heights object.
*
* @since 4.0.0
*
* @return {void}
*/
function getHeights() {
var windowWidth = $window.width();
heights = {
windowHeight: $window.height(),
windowWidth: windowWidth,
adminBarHeight: ( windowWidth > 600 ? $adminBar.outerHeight() : 0 ),
toolsHeight: $tools.outerHeight() || 0,
menuBarHeight: $menuBar.outerHeight() || 0,
visualTopHeight: $visualTop.outerHeight() || 0,
textTopHeight: $textTop.outerHeight() || 0,
bottomHeight: $bottom.outerHeight() || 0,
statusBarHeight: $statusBar.outerHeight() || 0,
sideSortablesHeight: $sideSortables.height() || 0
};
// Adjust for hidden menubar.
if ( heights.menuBarHeight < 3 ) {
heights.menuBarHeight = 0;
}
}
// We need to wait for TinyMCE to initialize.
/**
* Binds all necessary functions for editor expand to the editor when the editor
* is initialized.
*
* @since 4.0.0
*
* @param {event} event The TinyMCE editor init event.
* @param {object} editor The editor to bind the vents on.
*
* @return {void}
*/
$document.on( 'tinymce-editor-init.editor-expand', function( event, editor ) {
// VK contains the type of key pressed. VK = virtual keyboard.
var VK = window.tinymce.util.VK,
/**
* Hides any float panel with a hover state. Additionally hides tooltips.
*
* @return {void}
*/
hideFloatPanels = _.debounce( function() {
! $( '.mce-floatpanel:hover' ).length && window.tinymce.ui.FloatPanel.hideAll();
$( '.mce-tooltip' ).hide();
}, 1000, true );
// Make sure it's the main editor.
if ( editor.id !== 'content' ) {
return;
}
// Copy the editor instance.
mceEditor = editor;
// Set the minimum height to the initial viewport height.
editor.settings.autoresize_min_height = autoresizeMinHeight;
// Get the necessary UI elements.
$visualTop = $contentWrap.find( '.mce-toolbar-grp' );
$visualEditor = $contentWrap.find( '.mce-edit-area' );
$statusBar = $contentWrap.find( '.mce-statusbar' );
$menuBar = $contentWrap.find( '.mce-menubar' );
/**
* Gets the offset of the editor.
*
* @return {number|boolean} Returns the offset of the editor
* or false if there is no offset height.
*/
function mceGetCursorOffset() {
var node = editor.selection.getNode(),
range, view, offset;
/*
* If editor.wp.getView and the selection node from the editor selection
* are defined, use this as a view for the offset.
*/
if ( editor.wp && editor.wp.getView && ( view = editor.wp.getView( node ) ) ) {
offset = view.getBoundingClientRect();
} else {
range = editor.selection.getRng();
// Try to get the offset from a range.
try {
offset = range.getClientRects()[0];
} catch( er ) {}
// Get the offset from the bounding client rectangle of the node.
if ( ! offset ) {
offset = node.getBoundingClientRect();
}
}
return offset.height ? offset : false;
}
/**
* Filters the special keys that should not be used for scrolling.
*
* @since 4.0.0
*
* @param {event} event The event to get the key code from.
*
* @return {void}
*/
function mceKeyup( event ) {
var key = event.keyCode;
// Bail on special keys. Key code 47 is a '/'.
if ( key <= 47 && ! ( key === VK.SPACEBAR || key === VK.ENTER || key === VK.DELETE || key === VK.BACKSPACE || key === VK.UP || key === VK.LEFT || key === VK.DOWN || key === VK.UP ) ) {
return;
// OS keys, function keys, num lock, scroll lock. Key code 91-93 are OS keys.
// Key code 112-123 are F1 to F12. Key code 144 is num lock. Key code 145 is scroll lock.
} else if ( ( key >= 91 && key <= 93 ) || ( key >= 112 && key <= 123 ) || key === 144 || key === 145 ) {
return;
}
mceScroll( key );
}
/**
* Makes sure the cursor is always visible in the editor.
*
* Makes sure the cursor is kept between the toolbars of the editor and scrolls
* the window when the cursor moves out of the viewport to a wpview.
* Setting a buffer > 0 will prevent the browser default.
* Some browsers will scroll to the middle,
* others to the top/bottom of the *window* when moving the cursor out of the viewport.
*
* @since 4.1.0
*
* @param {string} key The key code of the pressed key.
*
* @return {void}
*/
function mceScroll( key ) {
var offset = mceGetCursorOffset(),
buffer = 50,
cursorTop, cursorBottom, editorTop, editorBottom;
// Don't scroll if there is no offset.
if ( ! offset ) {
return;
}
// Determine the cursorTop based on the offset and the top of the editor iframe.
cursorTop = offset.top + editor.iframeElement.getBoundingClientRect().top;
// Determine the cursorBottom based on the cursorTop and offset height.
cursorBottom = cursorTop + offset.height;
// Subtract the buffer from the cursorTop.
cursorTop = cursorTop - buffer;
// Add the buffer to the cursorBottom.
cursorBottom = cursorBottom + buffer;
editorTop = heights.adminBarHeight + heights.toolsHeight + heights.menuBarHeight + heights.visualTopHeight;
/*
* Set the editorBottom based on the window Height, and add the bottomHeight and statusBarHeight if the
* advanced editor is enabled.
*/
editorBottom = heights.windowHeight - ( advanced ? heights.bottomHeight + heights.statusBarHeight : 0 );
// Don't scroll if the node is taller than the visible part of the editor.
if ( editorBottom - editorTop < offset.height ) {
return;
}
/*
* If the cursorTop is smaller than the editorTop and the up, left
* or backspace key is pressed, scroll the editor to the position defined
* by the cursorTop, pageYOffset and editorTop.
*/
if ( cursorTop < editorTop && ( key === VK.UP || key === VK.LEFT || key === VK.BACKSPACE ) ) {
window.scrollTo( window.pageXOffset, cursorTop + window.pageYOffset - editorTop );
/*
* If any other key is pressed or the cursorTop is bigger than the editorTop,
* scroll the editor to the position defined by the cursorBottom,
* pageYOffset and editorBottom.
*/
} else if ( cursorBottom > editorBottom ) {
window.scrollTo( window.pageXOffset, cursorBottom + window.pageYOffset - editorBottom );
}
}
/**
* If the editor is fullscreen, calls adjust.
*
* @since 4.1.0
*
* @param {event} event The FullscreenStateChanged event.
*
* @return {void}
*/
function mceFullscreenToggled( event ) {
// event.state is true if the editor is fullscreen.
if ( ! event.state ) {
adjust();
}
}
/**
* Shows the editor when scrolled.
*
* Binds the hideFloatPanels function on the window scroll.mce-float-panels event.
* Executes the wpAutoResize on the active editor.
*
* @since 4.0.0
*
* @return {void}
*/
function mceShow() {
$window.on( 'scroll.mce-float-panels', hideFloatPanels );
setTimeout( function() {
editor.execCommand( 'wpAutoResize' );
adjust();
}, 300 );
}
/**
* Resizes the editor.
*
* Removes all functions from the window scroll.mce-float-panels event.
* Resizes the text editor and scrolls to a position based on the pageXOffset and adminBarHeight.
*
* @since 4.0.0
*
* @return {void}
*/
function mceHide() {
$window.off( 'scroll.mce-float-panels' );
setTimeout( function() {
var top = $contentWrap.offset().top;
if ( window.pageYOffset > top ) {
window.scrollTo( window.pageXOffset, top - heights.adminBarHeight );
}
textEditorResize();
adjust();
}, 100 );
adjust();
}
/**
* Toggles advanced states.
*
* @since 4.1.0
*
* @return {void}
*/
function toggleAdvanced() {
advanced = ! advanced;
}
/**
* Binds events of the editor and window.
*
* @since 4.0.0
*
* @return {void}
*/
mceBind = function() {
editor.on( 'keyup', mceKeyup );
editor.on( 'show', mceShow );
editor.on( 'hide', mceHide );
editor.on( 'wp-toolbar-toggle', toggleAdvanced );
// Adjust when the editor resizes.
editor.on( 'setcontent wp-autoresize wp-toolbar-toggle', adjust );
// Don't hide the caret after undo/redo.
editor.on( 'undo redo', mceScroll );
// Adjust when exiting TinyMCE's fullscreen mode.
editor.on( 'FullscreenStateChanged', mceFullscreenToggled );
$window.off( 'scroll.mce-float-panels' ).on( 'scroll.mce-float-panels', hideFloatPanels );
};
/**
* Unbinds the events of the editor and window.
*
* @since 4.0.0
*
* @return {void}
*/
mceUnbind = function() {
editor.off( 'keyup', mceKeyup );
editor.off( 'show', mceShow );
editor.off( 'hide', mceHide );
editor.off( 'wp-toolbar-toggle', toggleAdvanced );
editor.off( 'setcontent wp-autoresize wp-toolbar-toggle', adjust );
editor.off( 'undo redo', mceScroll );
editor.off( 'FullscreenStateChanged', mceFullscreenToggled );
$window.off( 'scroll.mce-float-panels' );
};
if ( $wrap.hasClass( 'wp-editor-expand' ) ) {
// Adjust "immediately".
mceBind();
initialResize( adjust );
}
} );
/**
* Adjusts the toolbars heights and positions.
*
* Adjusts the toolbars heights and positions based on the scroll position on
* the page, the active editor mode and the heights of the editor, admin bar and
* side bar.
*
* @since 4.0.0
*
* @param {event} event The event that calls this function.
*
* @return {void}
*/
function adjust( event ) {
// Makes sure we're not in fullscreen mode.
if ( fullscreen && fullscreen.settings.visible ) {
return;
}
var windowPos = $window.scrollTop(),
type = event && event.type,
resize = type !== 'scroll',
visual = mceEditor && ! mceEditor.isHidden(),
buffer = autoresizeMinHeight,
postBodyTop = $postBody.offset().top,
borderWidth = 1,
contentWrapWidth = $contentWrap.width(),
$top, $editor, sidebarTop, footerTop, canPin,
topPos, topHeight, editorPos, editorHeight;
/*
* Refresh the heights if type isn't 'scroll'
* or heights.windowHeight isn't set.
*/
if ( resize || ! heights.windowHeight ) {
getHeights();
}
// Resize on resize event when the editor is in text mode.
if ( ! visual && type === 'resize' ) {
textEditorResize();
}
if ( visual ) {
$top = $visualTop;
$editor = $visualEditor;
topHeight = heights.visualTopHeight;
} else {
$top = $textTop;
$editor = $textEditor;
topHeight = heights.textTopHeight;
}
// Return if TinyMCE is still initializing.
if ( ! visual && ! $top.length ) {
return;
}
topPos = $top.parent().offset().top;
editorPos = $editor.offset().top;
editorHeight = $editor.outerHeight();
/*
* If in visual mode, checks if the editorHeight is greater than the autoresizeMinHeight + topHeight.
* If not in visual mode, checks if the editorHeight is greater than the autoresizeMinHeight + 20.
*/
canPin = visual ? autoresizeMinHeight + topHeight : autoresizeMinHeight + 20; // 20px from textarea padding.
canPin = editorHeight > ( canPin + 5 );
if ( ! canPin ) {
if ( resize ) {
$tools.css( {
position: 'absolute',
top: 0,
width: contentWrapWidth
} );
if ( visual && $menuBar.length ) {
$menuBar.css( {
position: 'absolute',
top: 0,
width: contentWrapWidth - ( borderWidth * 2 )
} );
}
$top.css( {
position: 'absolute',
top: heights.menuBarHeight,
width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) )
} );
$statusBar.attr( 'style', advanced ? '' : 'visibility: hidden;' );
$bottom.attr( 'style', '' );
}
} else {
// Check if the top is not already in a fixed position.
if ( ( ! fixedTop || resize ) &&
( windowPos >= ( topPos - heights.toolsHeight - heights.adminBarHeight ) &&
windowPos <= ( topPos - heights.toolsHeight - heights.adminBarHeight + editorHeight - buffer ) ) ) {
fixedTop = true;
$tools.css( {
position: 'fixed',
top: heights.adminBarHeight,
width: contentWrapWidth
} );
if ( visual && $menuBar.length ) {
$menuBar.css( {
position: 'fixed',
top: heights.adminBarHeight + heights.toolsHeight,
width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) )
} );
}
$top.css( {
position: 'fixed',
top: heights.adminBarHeight + heights.toolsHeight + heights.menuBarHeight,
width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) )
} );
// Check if the top is already in a fixed position.
} else if ( fixedTop || resize ) {
if ( windowPos <= ( topPos - heights.toolsHeight - heights.adminBarHeight ) ) {
fixedTop = false;
$tools.css( {
position: 'absolute',
top: 0,
width: contentWrapWidth
} );
if ( visual && $menuBar.length ) {
$menuBar.css( {
position: 'absolute',
top: 0,
width: contentWrapWidth - ( borderWidth * 2 )
} );
}
$top.css( {
position: 'absolute',
top: heights.menuBarHeight,
width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) )
} );
} else if ( windowPos >= ( topPos - heights.toolsHeight - heights.adminBarHeight + editorHeight - buffer ) ) {
fixedTop = false;
$tools.css( {
position: 'absolute',
top: editorHeight - buffer,
width: contentWrapWidth
} );
if ( visual && $menuBar.length ) {
$menuBar.css( {
position: 'absolute',
top: editorHeight - buffer,
width: contentWrapWidth - ( borderWidth * 2 )
} );
}
$top.css( {
position: 'absolute',
top: editorHeight - buffer + heights.menuBarHeight,
width: contentWrapWidth - ( borderWidth * 2 ) - ( visual ? 0 : ( $top.outerWidth() - $top.width() ) )
} );
}
}
// Check if the bottom is not already in a fixed position.
if ( ( ! fixedBottom || ( resize && advanced ) ) &&
// Add borderWidth for the border around the .wp-editor-container.
( windowPos + heights.windowHeight ) <= ( editorPos + editorHeight + heights.bottomHeight + heights.statusBarHeight + borderWidth ) ) {
if ( event && event.deltaHeight > 0 && event.deltaHeight < 100 ) {
window.scrollBy( 0, event.deltaHeight );
} else if ( visual && advanced ) {
fixedBottom = true;
$statusBar.css( {
position: 'fixed',
bottom: heights.bottomHeight,
visibility: '',
width: contentWrapWidth - ( borderWidth * 2 )
} );
$bottom.css( {
position: 'fixed',
bottom: 0,
width: contentWrapWidth
} );
}
} else if ( ( ! advanced && fixedBottom ) ||
( ( fixedBottom || resize ) &&
( windowPos + heights.windowHeight ) > ( editorPos + editorHeight + heights.bottomHeight + heights.statusBarHeight - borderWidth ) ) ) {
fixedBottom = false;
$statusBar.attr( 'style', advanced ? '' : 'visibility: hidden;' );
$bottom.attr( 'style', '' );
}
}
// The postbox container is positioned with @media from CSS. Ensure it is pinned on the side.
if ( $postboxContainer.width() < 300 && heights.windowWidth > 600 &&
// Check if the sidebar is not taller than the document height.
$document.height() > ( $sideSortables.height() + postBodyTop + 120 ) &&
// Check if the editor is taller than the viewport.
heights.windowHeight < editorHeight ) {
if ( ( heights.sideSortablesHeight + pinnedToolsTop + sidebarBottom ) > heights.windowHeight || fixedSideTop || fixedSideBottom ) {
// Reset the sideSortables style when scrolling to the top.
if ( windowPos + pinnedToolsTop <= postBodyTop ) {
$sideSortables.attr( 'style', '' );
fixedSideTop = fixedSideBottom = false;
} else {
// When scrolling down.
if ( windowPos > lastScrollPosition ) {
if ( fixedSideTop ) {
// Let it scroll.
fixedSideTop = false;
sidebarTop = $sideSortables.offset().top - heights.adminBarHeight;
footerTop = $footer.offset().top;
// Don't get over the footer.
if ( footerTop < sidebarTop + heights.sideSortablesHeight + sidebarBottom ) {
sidebarTop = footerTop - heights.sideSortablesHeight - 12;
}
$sideSortables.css({
position: 'absolute',
top: sidebarTop,
bottom: ''
});
} else if ( ! fixedSideBottom && heights.sideSortablesHeight + $sideSortables.offset().top + sidebarBottom < windowPos + heights.windowHeight ) {
// Pin the bottom.
fixedSideBottom = true;
$sideSortables.css({
position: 'fixed',
top: 'auto',
bottom: sidebarBottom
});
}
// When scrolling up.
} else if ( windowPos < lastScrollPosition ) {
if ( fixedSideBottom ) {
// Let it scroll.
fixedSideBottom = false;
sidebarTop = $sideSortables.offset().top - sidebarBottom;
footerTop = $footer.offset().top;
// Don't get over the footer.
if ( footerTop < sidebarTop + heights.sideSortablesHeight + sidebarBottom ) {
sidebarTop = footerTop - heights.sideSortablesHeight - 12;
}
$sideSortables.css({
position: 'absolute',
top: sidebarTop,
bottom: ''
});
} else if ( ! fixedSideTop && $sideSortables.offset().top >= windowPos + pinnedToolsTop ) {
// Pin the top.
fixedSideTop = true;
$sideSortables.css({
position: 'fixed',
top: pinnedToolsTop,
bottom: ''
});
}
}
}
} else {
// If the sidebar container is smaller than the viewport, then pin/unpin the top when scrolling.
if ( windowPos >= ( postBodyTop - pinnedToolsTop ) ) {
$sideSortables.css( {
position: 'fixed',
top: pinnedToolsTop
} );
} else {
$sideSortables.attr( 'style', '' );
}
fixedSideTop = fixedSideBottom = false;
}
lastScrollPosition = windowPos;
} else {
$sideSortables.attr( 'style', '' );
fixedSideTop = fixedSideBottom = false;
}
if ( resize ) {
$contentWrap.css( {
paddingTop: heights.toolsHeight
} );
if ( visual ) {
$visualEditor.css( {
paddingTop: heights.visualTopHeight + heights.menuBarHeight
} );
} else {
$textEditor.css( {
marginTop: heights.textTopHeight
} );
}
}
}
/**
* Resizes the editor and adjusts the toolbars.
*
* @since 4.0.0
*
* @return {void}
*/
function fullscreenHide() {
textEditorResize();
adjust();
}
/**
* Runs the passed function with 500ms intervals.
*
* @since 4.0.0
*
* @param {function} callback The function to run in the timeout.
*
* @return {void}
*/
function initialResize( callback ) {
for ( var i = 1; i < 6; i++ ) {
setTimeout( callback, 500 * i );
}
}
/**
* Runs adjust after 100ms.
*
* @since 4.0.0
*
* @return {void}
*/
function afterScroll() {
clearTimeout( scrollTimer );
scrollTimer = setTimeout( adjust, 100 );
}
/**
* Binds editor expand events on elements.
*
* @since 4.0.0
*
* @return {void}
*/
function on() {
/*
* Scroll to the top when triggering this from JS.
* Ensure the toolbars are pinned properly.
*/
if ( window.pageYOffset && window.pageYOffset > pageYOffsetAtTop ) {
window.scrollTo( window.pageXOffset, 0 );
}
$wrap.addClass( 'wp-editor-expand' );
// Adjust when the window is scrolled or resized.
$window.on( 'scroll.editor-expand resize.editor-expand', function( event ) {
adjust( event.type );
afterScroll();
} );
/*
* Adjust when collapsing the menu, changing the columns
* or changing the body class.
*/
$document.on( 'wp-collapse-menu.editor-expand postboxes-columnchange.editor-expand editor-classchange.editor-expand', adjust )
.on( 'postbox-toggled.editor-expand postbox-moved.editor-expand', function() {
if ( ! fixedSideTop && ! fixedSideBottom && window.pageYOffset > pinnedToolsTop ) {
fixedSideBottom = true;
window.scrollBy( 0, -1 );
adjust();
window.scrollBy( 0, 1 );
}
adjust();
}).on( 'wp-window-resized.editor-expand', function() {
if ( mceEditor && ! mceEditor.isHidden() ) {
mceEditor.execCommand( 'wpAutoResize' );
} else {
textEditorResize();
}
});
$textEditor.on( 'focus.editor-expand input.editor-expand propertychange.editor-expand', textEditorResize );
mceBind();
// Adjust when entering or exiting fullscreen mode.
fullscreen && fullscreen.pubsub.subscribe( 'hidden', fullscreenHide );
if ( mceEditor ) {
mceEditor.settings.wp_autoresize_on = true;
mceEditor.execCommand( 'wpAutoResizeOn' );
if ( ! mceEditor.isHidden() ) {
mceEditor.execCommand( 'wpAutoResize' );
}
}
if ( ! mceEditor || mceEditor.isHidden() ) {
textEditorResize();
}
adjust();
$document.trigger( 'editor-expand-on' );
}
/**
* Unbinds editor expand events.
*
* @since 4.0.0
*
* @return {void}
*/
function off() {
var height = parseInt( window.getUserSetting( 'ed_size', 300 ), 10 );
if ( height < 50 ) {
height = 50;
} else if ( height > 5000 ) {
height = 5000;
}
/*
* Scroll to the top when triggering this from JS.
* Ensure the toolbars are reset properly.
*/
if ( window.pageYOffset && window.pageYOffset > pageYOffsetAtTop ) {
window.scrollTo( window.pageXOffset, 0 );
}
$wrap.removeClass( 'wp-editor-expand' );
$window.off( '.editor-expand' );
$document.off( '.editor-expand' );
$textEditor.off( '.editor-expand' );
mceUnbind();
// Adjust when entering or exiting fullscreen mode.
fullscreen && fullscreen.pubsub.unsubscribe( 'hidden', fullscreenHide );
// Reset all CSS.
$.each( [ $visualTop, $textTop, $tools, $menuBar, $bottom, $statusBar, $contentWrap, $visualEditor, $textEditor, $sideSortables ], function( i, element ) {
element && element.attr( 'style', '' );
});
fixedTop = fixedBottom = fixedSideTop = fixedSideBottom = false;
if ( mceEditor ) {
mceEditor.settings.wp_autoresize_on = false;
mceEditor.execCommand( 'wpAutoResizeOff' );
if ( ! mceEditor.isHidden() ) {
$textEditor.hide();
if ( height ) {
mceEditor.theme.resizeTo( null, height );
}
}
}
// If there is a height found in the user setting.
if ( height ) {
$textEditor.height( height );
}
$document.trigger( 'editor-expand-off' );
}
// Start on load.
if ( $wrap.hasClass( 'wp-editor-expand' ) ) {
on();
// Resize just after CSS has fully loaded and QuickTags is ready.
if ( $contentWrap.hasClass( 'html-active' ) ) {
initialResize( function() {
adjust();
textEditorResize();
} );
}
}
// Show the on/off checkbox.
$( '#adv-settings .editor-expand' ).show();
$( '#editor-expand-toggle' ).on( 'change.editor-expand', function() {
if ( $(this).prop( 'checked' ) ) {
on();
window.setUserSetting( 'editor_expand', 'on' );
} else {
off();
window.setUserSetting( 'editor_expand', 'off' );
}
});
// Expose on() and off().
window.editorExpand = {
on: on,
off: off
};
} );
/**
* Handles the distraction free writing of TinyMCE.
*
* @since 4.1.0
*
* @return {void}
*/
$( function() {
var $body = $( document.body ),
$wrap = $( '#wpcontent' ),
$editor = $( '#post-body-content' ),
$title = $( '#title' ),
$content = $( '#content' ),
$overlay = $( document.createElement( 'DIV' ) ),
$slug = $( '#edit-slug-box' ),
$slugFocusEl = $slug.find( 'a' )
.add( $slug.find( 'button' ) )
.add( $slug.find( 'input' ) ),
$menuWrap = $( '#adminmenuwrap' ),
$editorWindow = $(),
$editorIframe = $(),
_isActive = window.getUserSetting( 'editor_expand', 'on' ) === 'on',
_isOn = _isActive ? window.getUserSetting( 'post_dfw' ) === 'on' : false,
traveledX = 0,
traveledY = 0,
buffer = 20,
faded, fadedAdminBar, fadedSlug,
editorRect, x, y, mouseY, scrollY,
focusLostTimer, overlayTimer, editorHasFocus;
$body.append( $overlay );
$overlay.css( {
display: 'none',
position: 'fixed',
top: $adminBar.height(),
right: 0,
bottom: 0,
left: 0,
'z-index': 9997
} );
$editor.css( {
position: 'relative'
} );
$window.on( 'mousemove.focus', function( event ) {
mouseY = event.pageY;
} );
/**
* Recalculates the bottom and right position of the editor in the DOM.
*
* @since 4.1.0
*
* @return {void}
*/
function recalcEditorRect() {
editorRect = $editor.offset();
editorRect.right = editorRect.left + $editor.outerWidth();
editorRect.bottom = editorRect.top + $editor.outerHeight();
}
/**
* Activates the distraction free writing mode.
*
* @since 4.1.0
*
* @return {void}
*/
function activate() {
if ( ! _isActive ) {
_isActive = true;
$document.trigger( 'dfw-activate' );
$content.on( 'keydown.focus-shortcut', toggleViaKeyboard );
}
}
/**
* Deactivates the distraction free writing mode.
*
* @since 4.1.0
*
* @return {void}
*/
function deactivate() {
if ( _isActive ) {
off();
_isActive = false;
$document.trigger( 'dfw-deactivate' );
$content.off( 'keydown.focus-shortcut' );
}
}
/**
* Returns _isActive.
*
* @since 4.1.0
*
* @return {boolean} Returns true is _isActive is true.
*/
function isActive() {
return _isActive;
}
/**
* Binds events on the editor for distraction free writing.
*
* @since 4.1.0
*
* @return {void}
*/
function on() {
if ( ! _isOn && _isActive ) {
_isOn = true;
$content.on( 'keydown.focus', fadeOut );
$title.add( $content ).on( 'blur.focus', maybeFadeIn );
fadeOut();
window.setUserSetting( 'post_dfw', 'on' );
$document.trigger( 'dfw-on' );
}
}
/**
* Unbinds events on the editor for distraction free writing.
*
* @since 4.1.0
*
* @return {void}
*/
function off() {
if ( _isOn ) {
_isOn = false;
$title.add( $content ).off( '.focus' );
fadeIn();
$editor.off( '.focus' );
window.setUserSetting( 'post_dfw', 'off' );
$document.trigger( 'dfw-off' );
}
}
/**
* Binds or unbinds the editor expand events.
*
* @since 4.1.0
*
* @return {void}
*/
function toggle() {
if ( _isOn ) {
off();
} else {
on();
}
}
/**
* Returns the value of _isOn.
*
* @since 4.1.0
*
* @return {boolean} Returns true if _isOn is true.
*/
function isOn() {
return _isOn;
}
/**
* Fades out all elements except for the editor.
*
* The fading is done based on key presses and mouse movements.
* Also calls the fadeIn on certain key presses
* or if the mouse leaves the editor.
*
* @since 4.1.0
*
* @param event The event that triggers this function.
*
* @return {void}
*/
function fadeOut( event ) {
var isMac,
key = event && event.keyCode;
if ( window.navigator.platform ) {
isMac = ( window.navigator.platform.indexOf( 'Mac' ) > -1 );
}
// Fade in and returns on Escape and keyboard shortcut Alt+Shift+W and Ctrl+Opt+W.
if ( key === 27 || ( key === 87 && event.altKey && ( ( ! isMac && event.shiftKey ) || ( isMac && event.ctrlKey ) ) ) ) {
fadeIn( event );
return;
}
// Return if any of the following keys or combinations of keys is pressed.
if ( event && ( event.metaKey || ( event.ctrlKey && ! event.altKey ) || ( event.altKey && event.shiftKey ) || ( key && (
// Special keys ( tab, ctrl, alt, esc, arrow keys... ).
( key <= 47 && key !== 8 && key !== 13 && key !== 32 && key !== 46 ) ||
// Windows keys.
( key >= 91 && key <= 93 ) ||
// F keys.
( key >= 112 && key <= 135 ) ||
// Num Lock, Scroll Lock, OEM.
( key >= 144 && key <= 150 ) ||
// OEM or non-printable.
key >= 224
) ) ) ) {
return;
}
if ( ! faded ) {
faded = true;
clearTimeout( overlayTimer );
overlayTimer = setTimeout( function() {
$overlay.show();
}, 600 );
$editor.css( 'z-index', 9998 );
$overlay
// Always recalculate the editor area when entering the overlay with the mouse.
.on( 'mouseenter.focus', function() {
recalcEditorRect();
$window.on( 'scroll.focus', function() {
var nScrollY = window.pageYOffset;
if ( (
scrollY && mouseY &&
scrollY !== nScrollY
) && (
mouseY < editorRect.top - buffer ||
mouseY > editorRect.bottom + buffer
) ) {
fadeIn();
}
scrollY = nScrollY;
} );
} )
.on( 'mouseleave.focus', function() {
x = y = null;
traveledX = traveledY = 0;
$window.off( 'scroll.focus' );
} )
// Fade in when the mouse moves away form the editor area.
.on( 'mousemove.focus', function( event ) {
var nx = event.clientX,
ny = event.clientY,
pageYOffset = window.pageYOffset,
pageXOffset = window.pageXOffset;
if ( x && y && ( nx !== x || ny !== y ) ) {
if (
( ny <= y && ny < editorRect.top - pageYOffset ) ||
( ny >= y && ny > editorRect.bottom - pageYOffset ) ||
( nx <= x && nx < editorRect.left - pageXOffset ) ||
( nx >= x && nx > editorRect.right - pageXOffset )
) {
traveledX += Math.abs( x - nx );
traveledY += Math.abs( y - ny );
if ( (
ny <= editorRect.top - buffer - pageYOffset ||
ny >= editorRect.bottom + buffer - pageYOffset ||
nx <= editorRect.left - buffer - pageXOffset ||
nx >= editorRect.right + buffer - pageXOffset
) && (
traveledX > 10 ||
traveledY > 10
) ) {
fadeIn();
x = y = null;
traveledX = traveledY = 0;
return;
}
} else {
traveledX = traveledY = 0;
}
}
x = nx;
y = ny;
} )
// When the overlay is touched, fade in and cancel the event.
.on( 'touchstart.focus', function( event ) {
event.preventDefault();
fadeIn();
} );
$editor.off( 'mouseenter.focus' );
if ( focusLostTimer ) {
clearTimeout( focusLostTimer );
focusLostTimer = null;
}
$body.addClass( 'focus-on' ).removeClass( 'focus-off' );
}
fadeOutAdminBar();
fadeOutSlug();
}
/**
* Fades all elements back in.
*
* @since 4.1.0
*
* @param event The event that triggers this function.
*
* @return {void}
*/
function fadeIn( event ) {
if ( faded ) {
faded = false;
clearTimeout( overlayTimer );
overlayTimer = setTimeout( function() {
$overlay.hide();
}, 200 );
$editor.css( 'z-index', '' );
$overlay.off( 'mouseenter.focus mouseleave.focus mousemove.focus touchstart.focus' );
/*
* When fading in, temporarily watch for refocus and fade back out - helps
* with 'accidental' editor exits with the mouse. When fading in and the event
* is a key event (Escape or Alt+Shift+W) don't watch for refocus.
*/
if ( 'undefined' === typeof event ) {
$editor.on( 'mouseenter.focus', function() {
if ( $.contains( $editor.get( 0 ), document.activeElement ) || editorHasFocus ) {
fadeOut();
}
} );
}
focusLostTimer = setTimeout( function() {
focusLostTimer = null;
$editor.off( 'mouseenter.focus' );
}, 1000 );
$body.addClass( 'focus-off' ).removeClass( 'focus-on' );
}
fadeInAdminBar();
fadeInSlug();
}
/**
* Fades in if the focused element based on it position.
*
* @since 4.1.0
*
* @return {void}
*/
function maybeFadeIn() {
setTimeout( function() {
var position = document.activeElement.compareDocumentPosition( $editor.get( 0 ) );
function hasFocus( $el ) {
return $.contains( $el.get( 0 ), document.activeElement );
}
// The focused node is before or behind the editor area, and not outside the wrap.
if ( ( position === 2 || position === 4 ) && ( hasFocus( $menuWrap ) || hasFocus( $wrap ) || hasFocus( $footer ) ) ) {
fadeIn();
}
}, 0 );
}
/**
* Fades out the admin bar based on focus on the admin bar.
*
* @since 4.1.0
*
* @return {void}
*/
function fadeOutAdminBar() {
if ( ! fadedAdminBar && faded ) {
fadedAdminBar = true;
$adminBar
.on( 'mouseenter.focus', function() {
$adminBar.addClass( 'focus-off' );
} )
.on( 'mouseleave.focus', function() {
$adminBar.removeClass( 'focus-off' );
} );
}
}
/**
* Fades in the admin bar.
*
* @since 4.1.0
*
* @return {void}
*/
function fadeInAdminBar() {
if ( fadedAdminBar ) {
fadedAdminBar = false;
$adminBar.off( '.focus' );
}
}
/**
* Fades out the edit slug box.
*
* @since 4.1.0
*
* @return {void}
*/
function fadeOutSlug() {
if ( ! fadedSlug && faded && ! $slug.find( ':focus').length ) {
fadedSlug = true;
$slug.stop().fadeTo( 'fast', 0.3 ).on( 'mouseenter.focus', fadeInSlug ).off( 'mouseleave.focus' );
$slugFocusEl.on( 'focus.focus', fadeInSlug ).off( 'blur.focus' );
}
}
/**
* Fades in the edit slug box.
*
* @since 4.1.0
*
* @return {void}
*/
function fadeInSlug() {
if ( fadedSlug ) {
fadedSlug = false;
$slug.stop().fadeTo( 'fast', 1 ).on( 'mouseleave.focus', fadeOutSlug ).off( 'mouseenter.focus' );
$slugFocusEl.on( 'blur.focus', fadeOutSlug ).off( 'focus.focus' );
}
}
/**
* Triggers the toggle on Alt + Shift + W.
*
* Keycode 87 = w.
*
* @since 4.1.0
*
* @param {event} event The event to trigger the toggle.
*
* @return {void}
*/
function toggleViaKeyboard( event ) {
if ( event.altKey && event.shiftKey && 87 === event.keyCode ) {
toggle();
}
}
if ( $( '#postdivrich' ).hasClass( 'wp-editor-expand' ) ) {
$content.on( 'keydown.focus-shortcut', toggleViaKeyboard );
}
/**
* Adds the distraction free writing button when setting up TinyMCE.
*
* @since 4.1.0
*
* @param {event} event The TinyMCE editor setup event.
* @param {object} editor The editor to add the button to.
*
* @return {void}
*/
$document.on( 'tinymce-editor-setup.focus', function( event, editor ) {
editor.addButton( 'dfw', {
active: _isOn,
classes: 'wp-dfw btn widget',
disabled: ! _isActive,
onclick: toggle,
onPostRender: function() {
var button = this;
editor.on( 'init', function() {
if ( button.disabled() ) {
button.hide();
}
} );
$document
.on( 'dfw-activate.focus', function() {
button.disabled( false );
button.show();
} )
.on( 'dfw-deactivate.focus', function() {
button.disabled( true );
button.hide();
} )
.on( 'dfw-on.focus', function() {
button.active( true );
} )
.on( 'dfw-off.focus', function() {
button.active( false );
} );
},
tooltip: 'Distraction-free writing mode',
shortcut: 'Alt+Shift+W'
} );
editor.addCommand( 'wpToggleDFW', toggle );
editor.addShortcut( 'access+w', '', 'wpToggleDFW' );
} );
/**
* Binds and unbinds events on the editor.
*
* @since 4.1.0
*
* @param {event} event The TinyMCE editor init event.
* @param {object} editor The editor to bind events on.
*
* @return {void}
*/
$document.on( 'tinymce-editor-init.focus', function( event, editor ) {
var mceBind, mceUnbind;
function focus() {
editorHasFocus = true;
}
function blur() {
editorHasFocus = false;
}
if ( editor.id === 'content' ) {
$editorWindow = $( editor.getWin() );
$editorIframe = $( editor.getContentAreaContainer() ).find( 'iframe' );
mceBind = function() {
editor.on( 'keydown', fadeOut );
editor.on( 'blur', maybeFadeIn );
editor.on( 'focus', focus );
editor.on( 'blur', blur );
editor.on( 'wp-autoresize', recalcEditorRect );
};
mceUnbind = function() {
editor.off( 'keydown', fadeOut );
editor.off( 'blur', maybeFadeIn );
editor.off( 'focus', focus );
editor.off( 'blur', blur );
editor.off( 'wp-autoresize', recalcEditorRect );
};
if ( _isOn ) {
mceBind();
}
// Bind and unbind based on the distraction free writing focus.
$document.on( 'dfw-on.focus', mceBind ).on( 'dfw-off.focus', mceUnbind );
// Focus the editor when it is the target of the click event.
editor.on( 'click', function( event ) {
if ( event.target === editor.getDoc().documentElement ) {
editor.focus();
}
} );
}
} );
/**
* Binds events on quicktags init.
*
* @since 4.1.0
*
* @param {event} event The quicktags init event.
* @param {object} editor The editor to bind events on.
*
* @return {void}
*/
$document.on( 'quicktags-init', function( event, editor ) {
var $button;
// Bind the distraction free writing events if the distraction free writing button is available.
if ( editor.settings.buttons && ( ',' + editor.settings.buttons + ',' ).indexOf( ',dfw,' ) !== -1 ) {
$button = $( '#' + editor.name + '_dfw' );
$( document )
.on( 'dfw-activate', function() {
$button.prop( 'disabled', false );
} )
.on( 'dfw-deactivate', function() {
$button.prop( 'disabled', true );
} )
.on( 'dfw-on', function() {
$button.addClass( 'active' );
} )
.on( 'dfw-off', function() {
$button.removeClass( 'active' );
} );
}
} );
$document.on( 'editor-expand-on.focus', activate ).on( 'editor-expand-off.focus', deactivate );
if ( _isOn ) {
$content.on( 'keydown.focus', fadeOut );
$title.add( $content ).on( 'blur.focus', maybeFadeIn );
}
window.wp = window.wp || {};
window.wp.editor = window.wp.editor || {};
window.wp.editor.dfw = {
activate: activate,
deactivate: deactivate,
isActive: isActive,
on: on,
off: off,
toggle: toggle,
isOn: isOn
};
} );
} )( window, window.jQuery );